I'm reading up on boating and anchors. For something that seems simple it's a very complex issue.

Based on reading a properly anchored boat has a ratio between 1:5 to 1:7.
Calculated as such:
First value: Depth of water + distance from waterline to anchor line point.
Second Value: Length of the anchor line (I believe it's called a Rode).

Example:
Let's say my little boat is 2' from the gunnel to the waterline and I'm sitting in 50' of water.
Based on the guidance:
50' + 2' = 52'
52' * 5 = 260'
52' * 7 = 364'

So I need a Rode of between 260' and 364' to properly anchor????
The articles go on to say that adding a chain to the anchor and anchor type help to effectively shorten the "required" rode length.

sigh..thanks..
Jer